public void CorrectGrayBoxFeaturesAreSelected()
{
var gurobiGrayBoxMethods = new GurobiGrayBoxMethods();
var runtimeFeatures = new GurobiRuntimeFeatures(DateTime.Now);
var instanceFeatures = new GurobiInstanceFeatures();
var adapterFeatures = GurobiUtils.ComposeAdapterFeatures(runtimeFeatures, runtimeFeatures, instanceFeatures);
var adapterFeaturesHeader = GurobiUtils.ComposeAdapterFeaturesHeader(runtimeFeatures, runtimeFeatures, instanceFeatures);
var result = new GurobiResult(double.NaN, TimeSpan.MaxValue, TargetAlgorithmStatus.CancelledByTimeout, false);
var adapterDataRecord = new AdapterDataRecord <GurobiResult>(
"Gurobi901",
TargetAlgorithmStatus.Running,
TimeSpan.Zero,
TimeSpan.Zero,
DateTime.Now,
adapterFeaturesHeader,
adapterFeatures,
result);
var tunerDataRecord = new TunerDataRecord <GurobiResult>(
"Node",
0,
0,
"Instance",
0.5,
new[] { "Genome" },
(GenomeDoubleRepresentation) new[] { 0D },
result);
var dataRecord = new DataRecord <GurobiResult>(tunerDataRecord, adapterDataRecord);
var featureNames = gurobiGrayBoxMethods.GetGrayBoxFeatureNamesFromDataRecord(dataRecord);
var correctFeatureNames = new[]
{
"ExpendedWallClockTime",
"RuntimeFeature_CuttingPlanesCount_Current",
"RuntimeFeature_ExploredNodeCount_Current",
"RuntimeFeature_FeasibleSolutionsCount_Current",
"RuntimeFeature_MipGap_Current",
"RuntimeFeature_SimplexIterationsCount_Current",
"RuntimeFeature_UnexploredNodeCount_Current",
"RuntimeFeature_CuttingPlanesCount_Last",
"RuntimeFeature_ExploredNodeCount_Last",
"RuntimeFeature_FeasibleSolutionsCount_Last",
"RuntimeFeature_MipGap_Last",
"RuntimeFeature_SimplexIterationsCount_Last",
"RuntimeFeature_UnexploredNodeCount_Last",
"InstanceFeature_NumberOfIntegerVariables",
"InstanceFeature_NumberOfLinearConstraints",
"InstanceFeature_NumberOfNonZeroCoefficients",
"InstanceFeature_NumberOfVariables",
};
featureNames.SequenceEqual(correctFeatureNames).ShouldBeTrue();
}
/// <summary>
/// Composes the given adapter features to a single array.
/// </summary>
/// <param name="currentRuntimeFeatures">The current runtime features.</param>
/// <param name="lastRuntimeFeatures">The last runtime features.</param>
/// <param name="instanceFeatures">The instance features.</param>
/// <returns>The composed array.</returns>
public static double[] ComposeAdapterFeatures(
GurobiRuntimeFeatures currentRuntimeFeatures,
GurobiRuntimeFeatures lastRuntimeFeatures,
GurobiInstanceFeatures instanceFeatures)
{
return(currentRuntimeFeatures.ToArray()
.Concat(lastRuntimeFeatures.ToArray())
.Concat(instanceFeatures.ToArray())
.ToArray());
}
/// <summary>
/// Composes the header of the given adapter features to a single array.
/// </summary>
/// <param name="currentRuntimeFeatures">The current runtime features.</param>
/// <param name="lastRuntimeFeatures">The last runtime features.</param>
/// <param name="instanceFeatures">The instance features.</param>
/// <returns>The composed array.</returns>
public static string[] ComposeAdapterFeaturesHeader(
GurobiRuntimeFeatures currentRuntimeFeatures,
GurobiRuntimeFeatures lastRuntimeFeatures,
GurobiInstanceFeatures instanceFeatures)
{
return(currentRuntimeFeatures.GetHeader("RuntimeFeature_", "_Current")
.Concat(lastRuntimeFeatures.GetHeader("RuntimeFeature_", "_Last"))
.Concat(instanceFeatures.GetHeader("InstanceFeature_"))
.ToArray());
}
/// <summary>
/// Sets the current <see cref="GurobiInstanceFeatures"/>.
/// </summary>
/// <param name="model">The <see cref="GRBModel"/>.</param>
private void SetGurobiInstanceFeatures(GRBModel model)
{
this._instanceFeatures = new GurobiInstanceFeatures()
{
NumberOfBinaryVariables = this.GetValueWithTryCatch(() => model.NumBinVars, 0),
NumberOfGeneralConstraints = this.GetValueWithTryCatch(() => model.NumGenConstrs, 0),
NumberOfIntegerVariables = this.GetValueWithTryCatch(() => model.NumIntVars, 0),
NumberOfLinearConstraints = this.GetValueWithTryCatch(() => model.NumConstrs, 0),
NumberOfNonZeroCoefficients = this.GetValueWithTryCatch(() => model.NumNZs, 0),
NumberOfNonZeroQuadraticObjectiveTerms =
this.GetValueWithTryCatch(() => model.NumQNZs, 0),
NumberOfNonZeroTermsInQuadraticConstraints =
this.GetValueWithTryCatch(() => model.NumQCNZs, 0),
NumberOfQuadraticConstraints = this.GetValueWithTryCatch(() => model.NumQConstrs, 0),
NumberOfSosConstraints = this.GetValueWithTryCatch(() => model.NumSOS, 0),
NumberOfVariables = this.GetValueWithTryCatch(() => model.NumVars, 0),
NumberOfVariablesWithPiecewiseLinearObjectiveFunctions = this.GetValueWithTryCatch(
() => model.NumPWLObjVars,
0),
};
}